Hair colouring composition

ABSTRACT

Present invention relates to a dyeing composition for hair with improved dyeing and conditioning properties of hair. The object of the present invention a composition for dyeing hair based on at least one hair dye and comprising at least one amino acid surfactant and at least one natural oil.

Present invention relates to a dyeing composition for hair with improveddyeing and conditioning properties of hair.

Dyeing is a common in hair dressing practice. Various dyeingcompositions have been made available on the market either based on newdyestuffs with improved dyeing effects and/or giving possibility inachieving new colours or based on non-dyeing chemicals for better uptakeof the dyestuffs and for leaving hair in a good condition. Despite thedevelopments, there is still need for further improvements especially inreducing hair damage and leaving hair in a cosmetically acceptablestatus so that no additional composition for improving cosmeticproperties of hair has to be used subsequently. It has especially beenobserved that multiple processed hair and hair including parts withvarious degree of damage is difficult to dye homogeneously and alsogives problems in their cosmetic properties after dyeing. Hair cosmeticproperties referred to are especially combability, elasticity, naturalsoftness and feeling upon touching and bounce.

Based on the above, the aim of the present invention is to provide adyeing composition with improved dyeing effect on hair and, which, atthe same time, colours especially multiple processed hair and hairincluding parts with various degree of damage homogeneously and whichalso leaves hair in a cosmetically improved condition so that noadditional composition must be used subsequently.

The inventors of the present invention have surprisingly found out thata composition based on at least one hair dye and comprising further atleast one amino acid surfactant and at least one natural oil colourshair homogeneously and leaves hair in an excellently cosmeticallyacceptable status. It has especially been observed that composition ofthe present invention colours multiple processed hair and especially thehair including parts with various degree of damage homogeneously andleaves said hair in an excellently cosmetically acceptable condition. Ithas furthermore observed that with the dyeing compositions of thepresent invention long lasting colours are achieved which clearly meansthat colours achieved are stable to environmental influences such aslight and washing.

Accordingly the first object of the present invention a composition fordyeing hair based on at least one hair dye and comprising at least oneamino acid surfactant and at least one natural oil. Preferably thecompositions of the present invention are aqueous compositions andcomprise at least 40%, more preferably 50%, most preferably 60% and inparticular 70% by weight water, calculated to total of the composition.In a further preferred embodiment of the present invention is at leastone amino acid surfactant is an anionic surfactant.

The second object of the present invention is the use of dyeingcomposition of the present invention for dyeing and conditioning hairhomogeneously.

The third object of the present invention is the process for dyeing hairwherein a composition of the present invention is applied onto hair andprocessed for 1 to 45 min and rinsed off from hair.

The fourth object of the present invention is a process for dyeing hairwherein a composition of the present invention is mixed with acomposition comprising at least oxidizing agent immediately before useand applied onto hair and after processing 1 to 45 min rinsed off fromhair.

The composition of the present invention is provided to the consumerspreferably in kit and therefore further object of the present inventionis a kit for dyeing hair comprising at least two compositions whereinone of the compositions is according to the present invention and theother is preferably an aqueous composition comprising at least oneoxidizing agent.

Composition of the present invention comprises at least one hair dyewhich is selected from oxidative dyes and direct dyes which may becationic, anionic and neutral. It should be noted that the direct andoxidative dyes are also suitably used in mixture.

In principal all oxidative dyes available for hair colouring purposesare suitable within the meaning of the present invention. Specialmention is made of p-phenylenediamine, p-aminophenol and substitutedp-phenylenediamines such as 2,5-diamino-toluene, 2-n-propyl or2-ethyl-p-phenylenediamine, 2,6-di-methyl-p-phenylene-diamine,2-(2,5-diaminophenyl)ethanol,1-amino-4-bis-(2′-hydroxy-ethyl)amino-benzene, 2-(2-hydroxyethylamino)-5-aminotoluene, 4,4′-diaminodiphenylamine, 4-aminodiphenylamine,2-amino-5-N,N-diethyl aminotoluene, 4-amino-N-ethyl-N-isopropyl aniline,2-chloro-p-phenylenediamine,1-β-hydroxyethyl-2,5-diamino-4-chlorobenzene,1-β-hydroxyethyl-2,5-diamino-4-methyl benzene,2-methoxy-p-phenylenediamine, N,N-diethyl-p-phenylenediamine,1-amino-4-β-methoxyethyl aminobenzene, 1-dimethyl-amino-4-aminobenzene,1-hydroxy-2,5-diamino-4-methyl benzene,1-hydroxymethyl-2,5-diaminobenzene, 1,3-dimethyl-2,5-diaminobenzene,1,4-diamino isopropyl benzene and/or 1-amino-4-β-hydroxypropylaminobenzene, pyrazole and the derivatives thereof such as1-hydroxyethyl-4,5-diaminopyrazole, 3,4-diamino-5-hydroxypyrazole,3,5-diaminopyrazole, 3,5-diamino pyrazol-1-carboxamide,3-amino-5-hydroxypyrazole, 1-phenyl-2-methylpyrazole,1-phenyl-3-methylpyrazole-5-one, 3,5-dimethylpyrazole,3,5-dimethylpyrazole-1-methanol, 3,5-diamino-1,2,4-triazole,4-aminophenol and the derivatives thereof such as4-amino-3-methylphenol, 2-chloro-4-aminophenol,2,6-dichloro-4-aminophenol, 2,4-diamino-phenol,2,6-dibromo-4-aminophenol, tetramino pyrimidines, triaminohydroxypyrimidines, diaminomono- and -dihydroxy pyrimidines, aminotriazines,5-amino salicylic acid and/or 1,2,4-triamino benzene or thewater-soluble salts thereof.

Further suitable ones aminopyridines are 2,5-diaminopyridine,2,3-diaminopyridine, 2,6-diaminopyridine, 3-amino-2-methylamino-6-methoxypyridine, 2-dimethyl-5-aminopyridine, 2-dimethylaminoethyl-3-hydroxypyridine, 2-amino-4,6-dimethylpyridine,2-amino-3-hydroxypyridine, 3-amino-2(β-hydroxyethylamino)-6-methoxy-pyridine, 2,6-dimethyl amino-5-aminopyridine,2-di(hydroxyethyl) amino-5-aminopyridine, 2-hydroxyethylamino-5-aminopyridine, 4-hydroxy-2,5,6-triaminopyrimidine and/or thewater-soluble salts thereof.

Within the meaning of the present invention above mentioned developerscan as well be present as a mixture with each other.

The total concentration of the dye precursors (developing substances)customarily ranges between 0.001 to 5%, preferably 0.01 to 4% and morepreferably 0.05 to 3%, and most preferably 0.1 to 2% by weight,calculated to the total composition, whereby these figures are alwaysrelated to the proportion of free base.

In a further embodiment of the present invention compositions comprisein addition to at least one oxidative dye precursor at least onecoupling substance. As a rule any coupling substance customarily used inoxidative hair colouration area is suitable within the meaning of thepresent invention. Non-limiting coupling substances, are5-amino-2-methylphenol, 2-methyl-5-hydroxyethylaminophenol,2,4,-diamnophenoxyehanol, 2-amino-4-hydroxyethylaminoanisol,2-methyl-5-amino-6-chlorphenol, 1,3-bis(2,4-diaminophenoxy)propane,2-bis(2-hydroxyethyl)aminotoluene, 2-amino-5-methylphenol, resorcinol,2-methyl-resorcinol, 4-chlororesorcinol, 2-amino-4-chlorophenol,5-amino-4-methoxy-2-methylphenol, 2-aminophenol, 3-amino-phenol,1-methyl-2-hydroxy-4-aminobenzene, 3-N,N-dimethyl aminophenol,2,6-dihydroxy-3,5-dimethoxypyridine, 5-amino-3-methylphenol,6-amino-3-methylphenol, 1,3-diamino-benzene,1-amino-3-(2′-hy-droxyethylamino)benzene,1-amino-3-[bis(2′-hydroxy-ethyl) amino]benzene, α-naphthol,4,6-dichlororesorcinol, 1,3-diamino-toluene,4-hydroxy-1,2-methylenedioxy benzene, 1,5-dihydroxy naphthalene,1,6-dihydroxy naphthalene, 1,7-dihydroxy naphthalene, 2,7-dihydroxynaphthalene, 1-hydroxy-2-methyl naphthalene, 4-hydroxy-1,2-methyldioxybenzene, 2,4-diamino-3-chlorophenol, 5-amino-2-methoxyphenol and/or1-methoxy-2-amino-4-(2′-hydroxyethyl amino)benzene and/or1,3-bis(2,4-diaminophenoxy) propane or the water-soluble salts thereof.One or more of the above mentioned coupler can also be used in amixture.

In the hair dyeing compositions according to the invention, the couplingsubstance(s) as reaction partners of the developing substance(s) arepresent in approximately the same molecular proportions as thedeveloping substances, i.e. in amounts from 0.001 to 5%, preferably 0.01to 4% and more preferably 0.05 to 3%, and most preferably 0.1 to 2% byweight, calculated to the total composition, whereby these figuresalways relate to the proportion of free base.

Suitable direct dyes are selected from cationic, anionic, neutral dyesand mixtures thereof as available commercially from various suppliersand used mainly in semi-permanent hair coloration.

One of the suitable direct dyes is cationic dyes. Non-limiting examplesare Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue41, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, BasicOrange 31, Natural Brown 7, Basic Green 1, Basic Red 2, Basic Red 12Basic Red 22, Basic Red 51, Basic Red 76, Basic Violet 1, Basic Violet2, Basic Violet 3, Basic Violet 10, Basic Violet 14, Basic Yellow 57 andBasic Yellow 87, and their salts such as chloride, methosulfate, bromideetc. and mixtures thereof.

Further suitable direct dyes are anionic dyes. Suitable non-limitingexamples are Acid Black 1, Acid Blue 1, Acid Blue 3, Food Blue 5, AcidBlue 7, Acid Blue 9, Acid Blue 74, Acid Orange 3, Acid Orange 6, AcidOrange 7, Acid Orange 10, Acid Red 1, Acid Red 14, Acid Red 18, Acid Red27, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88,Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 9, Acid Violet 43,Acid Violet 49, Acid Yellow 1, Acid Yellow 23, Acid Yellow 3, FoodYellow No. 8, D&C Brown No. 1, D&C Green No. 5, D&C Green No. 8, D&COrange No. 4, D&C Orange No. 10, D&C Orange No. 11, D&C Red No. 21, D&CRed No. 27, D&C Red No. 33, D&C Violet 2, D&C Yellow No. 7, D&C YellowNo. 8, D&C Yellow No. 10, FD&C Red 2, FD&C Red 40, FD&C Red No. 4, FD&CYellow No. 6, FD&C Blue 1, Food Black 1, Food Black 2, Disperse Black 9and Disperse Violet 1 and their alkali metal salts such as sodium,potassium, and their mixtures.

Further suitable dyes for colouring hair within the meaning of thepresent invention are those of neutral nitro dyes. Suitable non-limitingexamples are HC Blue No. 2, HC Blue No. 4, HC Blue No. 5, HC Blue No. 6,HC Blue No. 7, HC Blue No. 8, HC Blue No. 9, HC Blue No. 10, HC Blue No.11, HC Blue No. 12, HC Blue No. 13, HC Brown No. 1, HC Brown No. 2, HCGreen No. 1, HC Orange No. 1, HC Orange No. 2, HC Orange No. 3, HCOrange No. 5, HC Red BN, HC Red No. 1, HC Red No. 3, HC Red No. 7, HCRed No. 8, HC Red No. 9, HC Red No. 10, HC Red No. 11, HC Red No. 13, HCRed No. 54, HC Red No. 14, HC Violet BS, HC Violet No. 1, HC Violet No.2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 5, HC Yellow No. 6,HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 10, HCYellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HCYellow No. 15, 2-Amino-6-chloro-4-nitrophenol, picramic acid,1,2-Diamino-4-nitrobenzol, 1,4-Diamino-2-nitrobenzol,3-Nitro-4-aminophenol, 1-Hydroxy-2-amino-3-nitrobenzol and2-hydroxyethylpicramic acid, and their mixtures.

Plant dyestuffs may also be used as hair colorant within the meaning ofthe present invention for example henna (red or black), alkanna root,laccaic acid, indigo, logwood powder, madder root and rhubarb powder,etc.

It should be noted that the above dyestuffs are also suitably for usedin mixture. In other words, cationic, anionic and nitro dyes are used inmixture within the meaning of the present invention. When using directdyes of various categories, their compatibility must be taken intoaccount.

Among the direct dyes cationic and nitro dyes are preferred ones. Mostpreferred ones are cationic direct dyes.

Concentration of direct dyes in the compositions of the presentinvention is within the range of 0.001 to 5%, preferably 0.01 to 4% andmore preferably 0.05 to 3%, and most preferably 0.1 to 2% by weight,calculated to total composition.

The total concentration of hair dye is preferably in the range of 0.001to 15%, preferably 0.01 to 10% and more preferably 0.05 to 7.5%, andmost preferably 0.1 to 5% by weight, calculated to total composition.

Composition of the present invention comprises at least one amino acidsurfactant. Preferably at least one amino acid surfactant is an anionicsurfactant and selected from the ones according to the general structure

wherein R₁ is a saturated or unsaturated, straight or branched alkylchain with 7 to 17 C atoms, R₂ is H or a methyl, R₃ is H, COO⁻M⁺,CH₂COO⁻M or COOH, n is 0 to 2, X is COO⁻ or SO₃ ⁻ and M is independentfrom each other H, sodium, potassium or ammonium.

With the term amino acid surfactants especially those surfactants aremeant derived from taurate, glutamate, alanin or alaninate, sarcosinateand aspartate.

Suitably amino acid surfactant types are taurate, glutamate, alanin oralaninate, sarcosinate, aspartate surfactants, and mixtures thereof.Preferred are taurate, glutamate and sarcosinate surfactants andmixtures thereof. More preferred are taurates and glutamates andespecially preferred are glutamate type surfactants.

Suitable taurate surfactants are according to the general formula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, R₂ is H or methyl, and M is H, sodium or potassium. Suitableexamples are potassium cocoyl taurate, potassium methyl cocoyl taurate,sodium caproyl methyl taurate, sodium cocoyl taurate, sodium lauroyltaurate, sodium methyl cocoyl taurate, sodium methyl lauroyl taurate,sodium methyl myristoyl taurate, sodium methyl oleoyl taurate, sodiummethyl palmitoyl taurate, and sodium methyl stearoyl taurate andmixtures thereof. Preferred are potassium cocoyl taurate, potassiummethyl cocoyl taurate, sodium caproyl methyl taurate, sodium cocoyltaurate, sodium lauroyl taurate, sodium methyl cocoyl taurate and sodiummethyl lauroyl taurate and mixtures thereof. More preferred arepotassium cocoyl taurate, potassium methyl cocoyl taurate, sodium cocoyltaurate, sodium lauroyl taurate, sodium methyl cocoyl taurate and sodiummethyl lauroyl taurate and mixtures thereof.

Suitable glutamate surfactants which are at the same time especiallypreferred are according to the general formula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, and M is independent from each other H, ammonium, sodium orpotassium. Suitable examples are dipotassium capryloyl glutamate,dipotassium undecylenoyl glutamate, disodium capryloyl glutamate,disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoylglutamate, disodium undecylenoyl glutamate, potassium capryloylglutamate, potassium cocoyl glutamate, potassium lauroyl glutamate,potassium myristoyl glutamate, potassium stearoyl glutamate, potassiumundecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoylglutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodiumolivoyl glutamate, sodium palmitoyl glutamate, sodium stearoylglutamate, and sodium undecylenoyl glutamate and mixtures thereof.Preferred are disodium capryloyl glutamate, disodium cocoyl glutamate,disodium lauroyl glutamate, potassium capryloyl glutamate, potassiumcocoyl glutamate, potassium lauroyl glutamate, potassium myristoylglutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodiumlauroyl glutamate, and sodium myristoyl glutamate and mixtures thereof.More preferred are disodium capryloyl glutamate, disodium cocoylglutamate, disodium lauroyl glutamate, potassium capryloyl glutamate,potassium cocoyl glutamate, potassium lauroyl glutamate, sodiumcapryloyl glutamate, sodium cocoyl glutamate, and sodium lauroylglutamate and mixtures thereof. Sodium cocoyl glutamate and/or Sodiumlauroyl glutamate is especially preferred.

Suitable alanine or alaninate surfactants are according to the generalformula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, R₂ is H or methyl and M is H, sodium or potassium. Suitableexamples are cocoyl methyl β-alanine, lauroyl β-alanine, lauroyl methylβ-alanine, myristoyl R-alanine, potassium lauroyl methyl β-alanine,sodium cocoyl alaninate, sodium cocoyl methyl β-alanine and sodiummyristoyl methyl β-alanine and mixtures thereof.

Suitable glycine surfactants are according to the general formula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, and M is H, sodium or potassium. Suitable examples are palmitoylglycine, sodium lauroyl glycine, sodium cocoyl glycine, sodium myristoylglycine, potassium lauroyl glycine, and potassium cocoyl glycine andmixtures thereof.

Suitable sarcosinate surfactants are according to the general formula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, and M is H, sodium or potassium. Suitable examples are potassiumlauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoylsarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate,and sodium palmitoyl sarcosinate and mixtures thereof. Preferred arepotassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodiumcocoyl sarcosinate, and sodium lauroyl sarcosinate and mixtures thereof.More preferred are sodium cocoyl sarcosinate, and sodium lauroylsarcosinate and mixtures thereof.

Suitable aspartate surfactants are according to the general formula

wherein R₁ is preferably a saturated or unsaturated, straight orbranched alkyl chain with 7 to 17 C atoms, and more preferably 9 to 13 Catoms, and M is independent from each other H, sodium or potassium.Suitable examples are sodium lauroyl aspartate, sodium myristoylaspartate, sodium cocoyl aspartate, sodium caproyl aspartate, disodiumlauroyl aspartate, disodium myristoyl aspartate, disodium cocoylaspartate, disodium caproyl aspartate, potassium lauroyl aspartate,potassium myristoyl aspartate, potassium cocoyl aspartate, potassiumcaproyl aspartate, dipotassium lauroyl aspartate, dipotassium myristoylaspartate, dipotassium cocoyl aspartate, and dipotassium caproylaspartate and mixtures thereof. Preferred are sodium lauroyl aspartate,sodium myristoyl aspartate, sodium cocoyl aspartate, and sodium caproylaspartate and mixtures thereof.

It should be noted that compositions of the present invention can alsocomprise mixture of several type of amino acid surfactants such asmixture of glutamate and taurate surfactants, or mixture of taurate,glutamate and sarcosinate surfactants etc.

In a preferred embodiment of the present invention amino acidsurfactants are selected from surfactants comprising at least onecarboxyl group and more preferably selected from glutamate, glycine,sarcosinate surfactants. Particularly preferred is glutamate surfactant.

Concentration of at least one amino acid surfactant in the compositionsof the present invention is in the range of 0.05 to 5%, preferably 0.1to 4% and more preferably 0.1 to 3% and most preferably 0.2 to 2.5% byweight calculated to total of the composition.

Composition of the present invention comprises at least one natural oil.Suitable non-limiting examples are argan oil, shea butter oil, kariteoil, olive oil, almond oil, avocado oil, ricinus oil, coconut oil, palmoil, sesame oil, peanut oil, sunflower oil, peach kernel oil, wheat germoil, macadamia nut oil, macadamia oil, night primrose oil, jojoba oil,castor oil, soya oil, lanolin, passiflora oil, black cumin oil, borageoils, grapeseed oil, hempseed oil, kukui nut oil, and rosehip oil.Preferred are argan oil, shea butter oil, karite oil, olive oil, almondoil, avocado oil, ricinus oil, coconut oil, palm oil, sesame oil, peanutoil, whale oil, sunflower oil, peach kernel oil, wheat germ oil,macadamia nut oil, macadamia oil, night primrose oil, jojoba oil, castoroil, and soya oil. More preferred are argan oil, shea butter oil, kariteoil, macadamia nut oil, macadamia oil, olive oil, almond oil, avocadooil, ricinus oil, coconut oil, palm oil, sesame oil, peanut oil,sunflower oil, peach kernel oil, wheatgerm oil, jojoba oil, castor oil,and soya oil. Most preferred are argan oil, shea butter oil, karite oil,olive oil, almond oil, avocado oil, coconut oil, macadamia nut oil,macadamia oil, palm oil, sesame oil, peach kernel oil, wheatgerm oil,jojoba oil, and soya oil. Particularly preferred are argan oil and sheabutter oil. karite oil which may be comprised as a single oil componentor in admixture with each other.

Concentration of at least one natural oil is in the range of 0.01 to 5%,preferably 0.02 to 4%, more preferably 0.05 to 2.5% and most preferably0.1 to 1.5% by weight calculated to total composition.

pH of the compositions vary in the range of 2 to 12, preferably 5 to 11,more preferably 6 to 10.5 and more preferably 6.8 to 10.5. In case ahigh lightening effect is looked for, i.e. lightened hair colour is 3 to4 levels lighter than original hair colour, that high pH values must bepreferred. It is the general knowledge of the skilled worker that atalkaline pH the lightening effect is also higher.

Compositions of the present invention comprises preferably at least onealkalizing agent, preferably selected from ammonia (or ammoniumhydroxide) and a compound according to the following general structure

R₄R₅R₆N

wherein R₄, R₅ and R₆ are same or different H, C₁-C₆ alkyl, C₁-C₆monohydroxyalkyl or C₂-C₆ polyhydroxyalkyl with the condition that atleast one of R₁, R₂ and R₃ is a mono or polyhydroxyalkyl. Composition ofthe present invention comprises at least one alkalizing agent selectedfrom the compounds according t general structure given above. In thepreferred embodiment of the present invention, at least one alkanolamineis selected from compounds according to the above general structurewherein R₁, R₂ and R₃ are same or different H, C₁-C₄ alkyl, C₁-C₄monohydroxyalkyl or C₂-C₄ polyhydroxyalkyl with the condition that atleast one of R₁, R₂ and R₃ is a mono or polyhydroxyalkyl.

According to the most preferred embodiment of the present invention atleast one alkanolamine is selected from compounds according to the abovegeneral formula wherein R₁, R₂ and R₃ are same or different H, C₂-C₄alkyl, C₂-C₄ monohydroxyalkyl or C₂-C₄ polyhydroxyalkyl with thecondition that at least one of R₁, R₂ and R₃ is a mono orpolyhydroxyalkyl.

Suitable alkanolamines according to the general formula of above aremonoethanolamine, diethanolamine, triethanolamine, monoethanolmethylamine, monoethanoldimethylamine, di-ethanol/methylamine,monoethanolethylamine, monoethanoldiethylamine, diethanolethylamine,monoethanolpropylamine, monoethanoldipropylamine, diethanolpropylamine,monoethanolbutylamine and diethanolbutylamine.

Preferred are monoethanolamine, diethanolamine and triethanolamine. Themost preferred is monoethanolamine.

The concentration of at least one alkalizing agent in the compositionsvaries between 1 and 35%, preferably 1 and 30%, more preferably 2.5 and25% and most preferably 2.5 to 20% by weight calculated to the totalcomposition.

Composition of the present invention preferably comprises at least oneoxidizing agent. Suitable oxidizing agents are hydrogen peroxide, ureaperoxide, melamin peroxide or perborate salts. The most preferred ishydrogen peroxide. Concentration of at least one oxidizing agent is inthe range of 0.1 to 20%, preferably 0.2 to 15%, more preferably 0.5 to15% and most preferably 1 to 12% by weight, calculated to total of thecomposition.

Compositions of the present invention preferably comprise at least onethickening agent. Thickening agent may be suitably selected fromanionic, cationic, nonionic and amphoteric polymer. Nonionic and anionicpolymers are preferred. Nonionic polymers are especially preferredpolymers. Suitable ones are xanthan gum, guar gum, cellulose and itsderivatives such as hydroxyethyl cellulose.

The concentration of at least one thickening agent in the compositionsvaries between 0.01 and 2.5%, preferably 0.05 and 2%, more preferably0.1 and 1.5% and most preferably 0.2 to 1% by weight calculated to thetotal of the composition.

Compositions according to the present invention can be in the form ofemulsion, solution, dispersion, thickened liquid and/or gel. Emulsionsare especially preferred.

Composition of present invention can comprise additionally fatty acidswith 0 to 3 ethylenic bonds and with fatty acyl chain length of 12 to 22C atom.

Concentration of the fatty acids can be in the range of 0.1 to 10%,preferably 0.1 to 7.5% and most preferably 0.2 to 5% by weightcalculated to the total composition, prior to mixing with oxidizingagent. Non-limiting examples are myristic acid, palmitic acid, behenicacid, stearic acid, oleic acid, linoleic acid. The most preferred fattyacid is oleic acid.

Composition of the present invention comprises preferably at least onefatty alcohol or mixture of fatty alcohols with the chain length of 14to 22 C atoms which may be straight or branched, saturated orunsaturated. Examples to suitable fatty alcohols, without limiting thechoice, are myristyl alcohol, cetyl alcohol, stearyl alcohol, behenylalcohol, oleyl alcohol and cetostearyl alcohol, octyldodecanol. The mostpreferred is cetostearyl alcohol well known with its trade name LanetteO or as Lanette N in mixture with sodium cetearyl sulfate from Cognis.Total fatty alcohol content should be in the range of 0.1 to 20%,preferably 0.2 and 15%, more preferably 0.5 and 10% and most preferably0.5 to 7.5% by weight, calculated to total of the composition.

Compositions according to present invention comprises surfactantsselected from anionic, amphoteric (or zwiterionic) and/or cationicsurfactants as emulsifier or solubilizer. Cationic surfactants are aswell used as hair conditioners in the colouring composition. Mostpreferred are nonionic surfactants.

The preferred non-ionic emulsifiers are ethoxylated fatty alcohols withan alkyl chain of 12 to 24 C atoms and with number of ethoxyl groups of2 to 50, preferably 10 to 30. Examples are ceteth-20, seteareth-30,palmeth-20, steareth-20, beheneth-20 etc. These compounds are namedaccording to the fatty alcohol they are originating and number ofethoxyl groups is given at the end. These compounds are well knownemulsifiers and found in any cosmetic ingredient book.

Further suited nonionic surfactants are, especially in mixture withfatty alcohol ethoxylates, for example, long-chain fatty acid mono- anddialkanolamides, such as coco fatty acid mono- or diethanolamide andmyristic fatty acid mono or diethanolamide, stearic acid mono ordiethanolamide.

Further nonionic surfactants suited again especially in admixture withfatty alcohol ethoxylates mentioned above are alkyl polyglucosides ofthe general formula

R₈—O—(R₉O)_(n)—Z_(x),

wherein R₈ is an alkyl group with 8 to 18 carbon atoms, R₉ is anethylene or propylene group, Z is a saccharide group with 5 to 6 carbonatoms, n is a number from 0 to 10 and x is a number between 1 and 5.

Further additionally useful nonionic surfactants are, for example, thevarious sorbitan esters, such as polyethylene glycol sorbitan stearicacid ester, fatty acid polyglycol esters or poly-condensates ofethyleneoxide and propyleneoxide, as they are on the market, forexample, under the trade name “Pluronics®”, as well as fatty alcoholethoxylates.

Further suitable nonionic surfactants are amineoxides. Such amineoxidesare state of the art, for example C₁₂-C₁₈— alkyl dimethyl amineoxidessuch as lauryl dimethyl amineoxide, C₁₂-C₁₈— alkyl amidopropyl or -ethylamineoxides, C₁₂-C₁₈-alkyl di(hydroxyethyl) or (hydroxypropyl)amineoxides, or also amineoxides with ethyleneoxide and/orpropyleneoxide groups in the alkyl chain. Such amineoxides are on themarket, for example, under the trade names “Ammonyx®”, “Aromox®” or“Genaminox®”.

Anionic surfactants other than anionic amino acid surfactants may alsobe comprised in eh compositions of the present invention. These areanionic surfactants of the sulfate, sulfonate, carboxylate and alkylphosphate type, for example, the known C₁₀-C₁₈-alkyl sulfates, and inparticular the respective ether sulfates, for example, C₁₂-C₁₄-alkylether sulfate, lauryl ether sulfate, especially with 1 to 4 ethyleneoxide groups in the molecule, monoglyceride (ether) sulfates, fatty acidamide sulfates obtained by ethoxylation and subsequent sulfatation offatty acid alkanolamides, and the alkali salts thereof, as well as thesalts of long-chain mono- and dialkyl phosphates.

Additional anionic surfactants useful within the scope of the inventionare α-olefin sulfonates or the salts thereof, and in particular alkalisalts of sulfosuccinic acid semiesters, for example, the disodium saltof monooctyl sulfosuccinate and alkali salts of long-chain monoalkylethoxysulfosuccinates.

Suitable surfactants of the carboxylate type are alkyl polyethercarboxylic acids and the salts thereof of the formula

R₁₀—(C₂H₄O)_(n)—O—CH₂COOX,

wherein R₁₀ is a C₈-C₂₀-alkyl group, preferably a C₁₂-C₁₄-alkyl group, nis a number from 1 to 20, preferably 2 to 17, and X is H or preferably acation of the group sodium, potassium, magnesium and ammonium, which canoptionally be hydroxyalkyl-substituted, as well as alkyl amido polyethercarboxylic acids of the general formula

wherein R₁₀ and X have the above meanings, and n is in particular anumber from 1 to 10, preferably 2.5 to 5.

Such products have been known for some time and are on the market, forexample, under the trade name “AKYPO®” and “AKYPO-SOFT®”.

Also useful are C₈-C₂₀-acyl isethionates, alone or in admixture withother anionic surfactants, as well as sulfofatty acids and the estersthereof.

It is also possible to use mixtures of several anionic surfactants in amixture.

An overview of the anionic surfactants suitable for the presentinvention can furthermore be found in the monography of K. Schrader,“Grundlagen and Rezepturen der Kosmetika”, 2^(nd) Ed. (1989, HüthigBuchverlag), pp. 595-600 and pp. 683 to 691.

As further surfactant component, the colouring compositions according tothe invention can also contain amphoteric or zwitterionic surfactants,for example in an amount from about 0.5% to about 5%, preferably fromabout 1% to about 2.5% by weight, calculated to the total composition.

Useful as such are in particular the various known betaines such asalkyl betaines, fatty acid amidoalkyl betaines and sulfobetaines, forexample, lauryl hydroxysulfobetaine; long-chain alkyl amino acids, suchas cocoaminoacetate, cocoaminopropionate and sodium cocoamphopropionateand -acetate have also proven suitable.

Colouring composition can comprise cationic surfactants as emulsifier,solubilizer and/or conditioning ingredients according to the formula,

where R₁₂ is a saturated or unsaturated, branched or non-branched alkylchain with 8-22 C atoms or

R₁₅CO NH(CH₂)_(n)

where R₁₅ is saturated or unsaturated, branched or non-branched alkylchain with 7-21 C atoms and n has typical value of 1-4 or

R₁₆COO(CH₂)_(n)

where R₁₆ is saturated or unsaturated, branched or non-branched alkylchain with 7-21 C atoms and n has typical value of 1-4, and

R₁₁ is unsaturated or saturated, branched or non-branched alkyl chainwith 1-22 C atoms or

R₁₅CONH(CH₂)_(n)

or

R₁₆COO(CH₂)_(n)

where R₁₅, R₁₆ and n are same as above.

R₁₃ and R₁₄ are lower alkyl chain with 1 to 4 Carbon atoms, and X istypically chloride, bromide, methosulfate.

Typical examples of those ingredients are cetyl trimethly ammoniumchloride, stear trimonium chloride, dipalmitoyl dimonium chloride,distearyl dimethyl ammonium chloride, stearamidopropyl trimonuimchloride, dioleoylethyl dimethyl ammonium methosulfate, dioleoylethylhydroxyethylmonium methosulfate.

Form the above mentioned surfactants preferred are non-ionic and anionicsurfactants and their mixtures.

Total surfactant concentration of the above mentioned ones and otherthan amino acid surfactants is in the range of 0.5 to 15%, preferably 1to 10%, more preferably 1 to 7.5% by weight calculated to totalcomposition prior to mixing with an oxidizing agent.

Composition can also contain cationic polymers as conditioning agents.Those are cationic cellulose type polymers know as Polymer JR type fromAmerchol such as Polyquaternium 10 or cationic guar gum known with tradename Jaguar from Rhône-Poulenc and chemically for example Guarhydroxypropyl trimonium chloride. Furthermore, chitosan and chitin canalso be included in the compositions as cationic natural polymers.

Furthermore, it has been found suitable those cationic polymers knownwith their CTFA category name Polyquaternium. Typical examples of thosePolyquaternium 2, Polyquaternium 4, Polyquaternium 6, Polyquaternium 7,Polyquaternium 10, Polyquaternium 11, Polyquaternium 16, Polyquaternium22 and Polyquaternium 28, Polyquaternium 30, Polyquaternium 37,Polyquaternium 36, Polyquaternium 46, Polyquaternium 67, Polyquaternium87.

Typical concentration range for any of the cationic conditionersmentioned above can be 0.01-5% by weight, preferably 0.03-2.5% by weightand more preferably 0.05-1.5% by weight.

Hair dyeing composition of the present invention preferably comprise anorganopolysiloxane wherein at least one silicium atom is linked to analkylene group having a hetero-atom, in particular a nitrogen atom, witha poly-(N-acyl alkyleneimine) units of the formula

wherein n is a number from 1 to 5 and R₁₇ is hydrogen, a C₁-C₁₂-alkyl orcycloalkyl, aralkyl or aryl group.

Preferred organopolysiloxane polymers are those of the type disclosed inEP-A 640 643, in particular optionally quaternized aminoalkyl, inparticular aminopropyl dimethyl polysiloxane/polyethyl oxazolinecopolymers of the formula

wherein m and n each are numbers from 20 to 10,000, in particular 50 to7,000, especially 100 to 5,000, x is a number between 1 and 5,preferably 3, and y is a number from 5 to 30, R₁₈ is a C₁-C₁₂-alkyl oraryl group, in particular a methyl, ethyl or benzyl group, and Y⁻ is ananion.

Especially suited are the organopolysiloxanes disclosed under the termsA-1, A-2 and A-3 on pages 12 to 13 of EP-A 640 643. The proportion ofgraft copolymers in the hair colouring compositions according to theinvention ranges from 0.05% to 5%, preferably 0.1% to 2.5%, inparticular 0.5% to 1.5% by weight, calculated to the total composition.

Compositions according to the present invention can contain organicsolvents as penetration enhancers and also as a solubilizers. Examplesof such organic solvents are benzyloxy ethanol, benzyl alcohol, phenoxyethanol, phenoxy isopropanol, methyl phenoxy ethanol, benzyl glycerol,N-benzyl formide, N-methylpyrrolidone, N-ethyl pyrrolidone, cinnamylalcohol, phenethyl alcohol, p-methyl benzyl alcohol, butyl cellosolve,methyl carbitol, ethyl carbitol, propyl carbitol, butyl carbitol,diethyleneglycol, diethyl ether and dipropyleneglycol diethyl ether.Typically the concentration of those solvents can be in the range from0.5% to 20%, preferably 0.5-15%, more preferably 0.5-10%, by weightcalculated to the total of the composition.

Compositions may further comprise at least one ubiquinone of the formula

where n is a number between 1 and 10 at a concentration of 0.0001 to 1%,preferably from 0.0002 to 0.75%, more preferably from 0.0002 to 0.5% andmost preferably from 0.0005 to 0.5% by weight, calculated to total ofthe composition.

The composition comprises ubiquinone which is preferably selected fromthe ones where n is a number between 6 and 10 and more preferably it isubiquinone 50 where n is 10, also known as Coenzyme Q10.

Composition can comprise at least one amino acid. At least one aminoacid is comprised at a concentration of 0.01 to 10%, preferably 0.05 to7.5% and more preferably 0.1 to 5% and most preferably 0.25 to 5% byweight calculated to total of each composition, prior to mixing withoxidizing composition.

Suitable amino acids are glycin, histidine, citrullin, asparagine,alanin, valin, leucin, isoleucin, pyrrolin, tryptophane, phenylalanine,methionine, serine, tyrosine, threonine and gluatamine. Preferably, theamino acid is selected from glycin, histidine, citrullin, asparagine,alanin, valin, leucin, isoleucin, pyrrolin, serine, tyrosine, threonineand gluatamine. More preferably, at least one amino acid is selectedfrom glycin, histidine, asparagine, alanin, valin, leucin, pyrrolin,serine, tyrosine and gluatamine, and most preferably at least one aminoacid is selected from glycin, asparagine, alanin, valin, leucin, andserine.

Composition can comprise further ceramide type of compound with thegeneral formula

where R₂₀ and R₂₁ are independent from each other alkyl- or alkenylgroup with 10 to 22 carbon atoms, R₂₂ is alkyl or hydroxyl alkyl with 1to 4 carbon atoms group and n is a number between 1 to 6, preferably 2or 3. Preferred compound according to the above chemical structure iscetyl-PG-hydroxyethylpalmitamide.

Further optional ingredient are sterols, especially the phytosterols aspreferred hair restructuring agents. Especially preferred ones are ofplant origin for example ergosterol, sitosterol, stigmasterol,fucosterol, brassicasterol, fungisterol, campesterol, zymosterol,ascosterol, cerevisterol, episterol, faecosterol, spinasterol. Amongthose phytosterols, the ones found in “Avocadin” which is theunsaponified fraction of the avocado oil is more preferred.

Following examples are to illustrate the invention but not to limit.

EXAMPLE 1

by weight Sodium lauroyl glutamate 1.0 Argan oil 0.2 Basic red 51 1.0Monoethanolamine 5.0 Phosphoric acid/sodium hydroxide q.s to pH 6.8Water q.s. to 100

The above composition was prepared by dissolving and mixing the givencomponents in water and pH was adjusted to 6.8.

The above composition coloured human hair homogeneously into anintensive red colour and hair so coloured was well cared in termscombability, shine and softness.

The above composition was added 3% hydrogen peroxide and hair dyed withthe obtained composition was homogeneously coloured into a brilliant redand hair was easily combable and softer and shinier.

Additionally pH of the above composition was adjusted to pH 9.5 in thepresence of hydrogen peroxide and the above properties of hair wereconfirmed.

EXAMPLE 2

by weight Sodium lauroyl glutamate 1.0 Argan oil 0.23,5-diamino-1-hydroxyethyl-pyrazol 1 .0 Resorcinol 0.5 Monoethanolamine5.0 Hydrogen peroxide 6.0 Phosphoric acid/sodium hydroxide q.s to pH 6.8Water q.s. to 100

The above composition was prepared by dissolving and mixing the givencomponents in water and pH was adjusted to 6.8.

It was observed that hair coloured into an intensive homogeneous redcolor.

EXAMPLE 3

by weight Sodium lauroyl glutamate 1.0 Argan oil 0.23,5-diamino-1-hydroxyethyl-pyrazol 1.0 Resorcinol 0.5 Monoethanolamine8.0 Phosphoric acid/sodium hydroxide q.s to pH 11 Water q.s. to 100

The above composition was mixed with an oxidizing composition comprising6% hydrogen peroxide at a weight ratio of 1:1. The resulting compositionhad a pH of 9.6. Hair coloured with the above composition was homogenousin colour, easier to comb and had natural softness. Exclusion of aminoacid surfactant and oil resulted in loss of effects and homogenouscolouring was also not possible.

EXAMPLE 4

by weight Sodium cocoyl glutamate 1.0 Argan oil 0.2 Cetearyl alcohol 5.0Ceteareth-20 2.0 p-toluene dimanine sulphate 1.0 Resorcinol 0.5Monoethanolamine 5.0 Phosphoric acid/sodium hydroxide q.s to pH 11.0Water q.s. to 100

The above composition was mixed with an oxidizing composition comprising6% hydrogen peroxide at a weight ratio of 1:1. The resulting compositionhad a pH of 9.8. Hair coloured with the above composition was homogenousin colour, easier to comb and had natural softness. Exclusion of aminoacid surfactant and oil resulted in loss of effects and homogenouscolouring was also not possible.

1. A composition for dyeing hair comprising at least one hair dye, atleast one amino acid surfactant and at least one natural oil.
 2. Thecomposition according to claim 1 wherein the amino acid surfactant isselected from anionic surfactants according to general structure

wherein R₁ is a saturated or unsaturated, straight or branched alkylchain with 7 to 17 C atoms, R₂ is H or a methyl, R₃ is H, COO⁻M⁺,CH₂COO⁻M or COOH, n is 0 to 2, X is COO⁻ or SO₃ ⁻ and M is independentfrom each other H, sodium or potassium.
 3. The composition according toclaim 1 wherein amino acid surfactant is selected from the groupconsisting of taurate, glutamate, alanin or alaninate, sarcosinate, andaspartate surfactants.
 4. The composition according to claim 1 whereinthe at least one natural oil is selected from the group consisting ofargan oil, shea butter oil, karite oil, olive oil, almond oil, avocadooil, ricinus oil, coconut oil, palm oil, sesame oil, peanut oil,sunflower oil, peach kernel oil, wheat germ oil, macadamia nut oil,macadamia oil, night primrose oil, jojoba oil, castor oil, soya oil,lanolin, passiflora oil, black cumin oil, borage oils, grapeseed oil,hempseed oil, kukui nut oil, and rosehip oil.
 5. The compositionaccording to claim 4 wherein the at least one natural oil is argan oilor shea butter oil or karite oil.
 6. The composition according to claim1 wherein the at least one hair dye is an oxidation dye precursor. 7.The composition according to claim 1 wherein the at least one hair dyeis a direct dye selected from anionic, cationic and neutral dyes.
 8. Thecomposition according claim 1 further comprising at least one alkalizingagent.
 9. The composition according to claim 1 wherein the compositionhas a pH between 2 and
 11. 10. The composition according to claim 1further comprising at least one thickening agent.
 11. The compositionaccording to claim 1 further comprising at least one fatty alcohol. 12.The composition according to claim 1 further comprising at least oneoxidizing agent.
 13. A process for dyeing hair comprising applying acomposition according to claim 1 onto hair, processing for 1 to 45 minand rinsing the composition from hair.
 14. A process for dyeing haircomprising mixing a composition according to claim 1 with a compositioncomprising at least oxidizing agent immediately before use, applying themixture onto hair processing for 1 to 45 min, and rinsing the mixturefrom hair.
 15. A kit for dyeing hair comprising at least twocompositions wherein one of the compositions is according to claim 1 andthe other is an aqueous composition comprising at least one oxidizingagent.